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Sharp Phase Transition for the Random-Cluster Model with Summable External Magnetic Field

Year: 2020
Type: preprint
Abstract: In this paper, we prove sharpness of the phase transition for the random-cluster model in summable positive external fields, with cluster weight q=2,3,..., on the hypercubic lattice. That is, there exists some nontrivial critical parameter that depends on the cluster weight and the external field, below which the model exhibits exponential decay and above which there exists almost surely an infinite cluster.
Language: English
Open Access status: green
OpenAlex ID: W3106986063
Cites: 29
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Related to: 20